1. Symantec/
  2. Security Response/
  3. Backdoor.Lala.C


Risk Level 1: Very Low

August 5, 2003
February 13, 2007 12:04:39 PM
Also Known As:
BackDoor-YQ [McAfee]
Trojan Horse
Systems Affected:

Backdoor.Lala.C is a Trojan Horse that steals confidential information from a compromised computer. It is a variant of Backdoor.Lala that installs one additional file, detected as Backdoor.Trojan, to allow for remote access. The existence of the Pntask.exe file is an indication of a possible infection.

Backdoor.Lala.C launches Mmtask.exe if it already exists, but does not install a file by this name. Mmtask.exe may be a copy of WinGate, a legitimate application which can be used as a backdoor. Mmtask.exe should be deleted if it is found in conjunction with Backdoor.Lala.C or another variant.

Antivirus Protection Dates

  • Initial Rapid Release version August 6, 2003
  • Latest Rapid Release version March 3, 2008 revision 035
  • Initial Daily Certified version August 6, 2003
  • Latest Daily Certified version March 3, 2008 revision 037
  • Initial Weekly Certified release date August 6, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Heather Shannon

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2016 Internet Security Threat Report, Volume 21
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